#main{  margin:8% auto;  width:400px;  height:580px;  font-size: 14px;  color: #666; margin-top: 10px; }
.button_zc{  background-color:#68838B;  width:300px;  height:50px;  color:#FFF;  font-size: 16px;
    font-weight: 700;  border:0;  position:relative;  left:20px;  }
#button_zc:hover {  background-color:#4490F7  }
.srk{  display: block;  height: 16px;  width: 328px;  padding: 11px 10px;  margin-right: 10px;  border: 1px solid #ddd;  font-size: 14px;  color: #666;  }
.inputchkdsk{  display:none; }
body{

    background-image:url(../images/ng.png);
    background-repeat: no-repeat;
    background-size:100%;}
